Bobbin stripper



E. A. TERRELL BOBBIN STRIPPER Filed Novl 14, 192e 4 Sheets-Sheet l @N Sv 7 MM. wm @QN m QN NAN h. N N QN @Nw @NN @N .NN Nm 7 7 N 7 Ng o 7 s A m-N m 0 O b G n@ WN. h- O Q 7 w ,his 7 NN ww. 7 ,un wm. mw. w v a. Q Q 7 hYNmv NNN mw QN w. NSN mkv) 7 7 r 7 h. .II 1GO. NQ s bw wm. 7 fm N\\ www hw. o 7 ,Nw 7 o 7 7 mw N Nmw b, Sv S1 3N www NNN mw 1 ,uw 7

Dec. 17, 1929.

E. A. TERRELL BOBBIN STRIPIER Filed Nov. 14, 192

4 Sheets-Sheet 2 Dec. v17; 192s. 'L A TERRELL 1,740,127

305m STRIPPER Filed Nov. 14. 1928 44 Sheets-sheet 3 Dec. 17, 1929.

E. A. TERRELL BOBBIN S'TRIPPER 4 "Shaets-Sheet 4 Filed NOV. 14, 1928 Patented Dec. 17, 1929 Ene-Aa A. aannam, or onnnnofrrnlnonmn CAROLINA Bonnin STRIPPER Appeaton led November 14, *1928; Serial No. A319,284.

The invention has relation tomachines of l the class used in the textileindnstry for theV purpose of stripping so-called feeler-waste, i. e., residues (if-weft or filling, from bobbins that have been expelled from the working shuttle of an automatic weft-replenishing loom in -bobbin-changing operations brought about under the control of a so-called weft connection with the inclined guide-way ory chute along which bobbins requiring to be l stripped pass on their'way from a supplyhopper to the stripping devices; also, in connection'with the stripper-elements whereby the residue of filling remainingupon a bobbin is stripped from the bobbin-barrel length wise of the latter; also, in connection with the means for preventing a bobbin that is fed into position to be acted upon by the stripperblades from becoming displaced longitudinally; and improvements in connection with the aw-members of the reciprocating gripper by which a bobhin is drawn lengthwise through the stripperelements-assemblage in the stripping operation.

The accompanying drawings illustrate the features of the invention applied in a bobbin- 35 stripping machine of the type aforesaid emhodyingcertainof the principles of the machine of U. S. Letters Patent for quill cleaning machine, No. 1,235,399, granted llnly 31, 1917 upon application of George 1V. Utsinan; 4.0 and of U. S. Letters Patent for machine for cleaning bobbins, No. 1,27 3,07 5, granted July 16,v 1918 upon application of Walter W. Linder.

In the drawings,-

Fig. 1 is a View of the said machine in side elevation, with the bobbin guideway or chute omitted, these being shown separately in Figs. 4, 5, 6.

' Fig. 2 is a plan view of the parts which are shown'in Fig. 1.

Fig. 3 ,is a side view of the bobbin guide way or chute, looking in the same direction as in Fig. 1.

Fig. 4 is a side view thereof looking in the opposite direction.

Fig. 5 is a view thereof'looking vfrom the left-hand side of Fig. 8.

Fig. 6 is a view in section in the plane of line 6, 6, Fig. 4.

Fig. 7 is a partly ysectional view, on a larger scale than the preceding views, showing the so-called shutter and its normal position with relation to the .positionl of aubobbin which has dropped in between the sets' of stripper` blades (not shown). e5

F ig. 8 is a view looking from the right in Fig. 7.

F ig. 9 is a partly sectional view showing certain portions of the stripper-blade mechanism which are located at the'top in Fig. 2, 70 namely at the machine-side opposite that shown in Fig. 1.

Fig. 10 is an isometric view of one of the bobbin-rests adjacent theacting ends of the stripper-blades.

Fig.- 11 is a plan view ofthe so-called crosshead, the `gripper-jaws carried thereby, and

. certain associated parts, with portions of the cross-head guides broken away.

Fig. 12 is a partly sectional view of one of 80 the gripper-jaws and its adjuncts.

F ig. 13 is an isometric view of the gripperjaw closing spring and the castellated spring drum.

' Fig. 14 shows the locking pin for the spring 85 drum, and the nut of said pin.

Fig. 15 shows one of the eccentric gripper jaw-studs.

Fig. 16 shows one of the locking pins for the eccentric gripper-jaw-studs. a0 The machine shown in the drawings has a frame constructedwith a bed 1 comprising two side-members, indicated in Fig. 2, in spaced apart, parallel relation, supported upon legs 2, 2. Above this bedis disposed in practicea bobbin-chute which serves to receive bobbins which are supplied to the machine for the purpose of being operated upon, and to conduct them toward the stripping; point in the machine. rThe chute is omitted 109- from the machine in Figs. 1 and 2, in order that parts located below it in the machine may be shown. It is shown separately in Figs. 3, 4, 5, 6. In practice the chute is so contrived and so disposed in the machine that a bobbin placed therein will be conducted to the stripping point, and after having been given a position extending lengthwise in a horizontal position lengthwise of the machine is deposited between the two sets of stripper-blades, 45, 45, with the rings on its head resting upon bobbin-rests 47, 4i', and the.

portion of the bobbin next adjoining such head in position to be acted upon by the stripper-blades. In this position of the bobbin its head is presented in readiness for being grasped by the traveling gripper-jaws 29, 30, which are employed for pulling the bobbin lengthwise through between the stripperblades for the performance of the stripping operation.

The said gripper-jaws are carried by the cross-head 4. Such cross-head is mounted for horizontal movement in guides 21, 21, in connection with the side-members aforesaid of the bed 1. AThis cross-head 4 is coupled by a longitudinally adjustable connecting-rod 2() with a slotted link 3,V within the slot of which works the crank-pin 37 of a crank G on the cross-shaft 35 of the machine, to transform the rotary motion of said shaft into ka reciprocating motion which will alternately advance the slide and its grippingjaws 29, 30, to the stripping blades and carry them away therefrom. A bearing-rod 201 extending from the rear side of link 3 works in a bearing at 59 on the bed, to support the other end of the reciprocating unit.

The bobbin-chute shown separately in Figs. 3, 4, 5, 6, and comprising the horizontal portion 50 in which the bobbins are deposited, and along which they are pushed by hand, and the inclined arc-shaped port-ion 51 down which the bobbins slide under the influence of gravity, is composed mainly of two cheekplates 52, 52, and two chute-castings 119, 120, to which said cheek-plates are bolted, the said chute-castings serving as feet for the bobbinchute and being attached by bolts 53, 58, to the surfaces 54, 54, Figs. 1 and 2, of the bed 1. The chute-rails 139, 139, attached to the upper edges of the cheek-plates 52, 52, at the inner faces of the latter, are spaced apart just sufficiently to permit the barrel of a bobbin to enter between them, but not suiliciently to admit the bobbin-head, so that a bobbin dropped into the bobbin-chute will be supported by its head, or by the met-al rings which customarily surround said head as in Figs. 8 and 11, resting upon the two chute-rails with its barrel hanging down within the chute. As thebobbin moves along` the chute toward the delivery end thereof the bobbin-head or the said rings will slide along the chute-rails. lNithin the bobbin-chute are located bobbin guidestrips 129, 180, spaced apart just suiiiciently to admit between them the small part of a bobbin-barrel near its tip. TheseV guidestrips determine the position of the bobbintip and barrel transversely, and prevent it from assuming a position inclined to one side or the other. rl`hey also serve to hold the barrels of successive bobbins in line with one another, and prevent one from lapping past another.

As one feature of the invention ll provide for adjustment of the said bobbin-guide-strips transversely. rlhus the said guide-strips are furnished with pins or studs 133, 133, projecting transversely youtward from the outer sides of the guide-strips. rlhe said pins or studs occupy holes in the cheek-plates, in the chutecastings, and in nipples in connection with the chute-castings, as shown in Figs. Sand 6. Thereby the guide-strips aresupported. The pins or studs are capable of being moved lengthwise within the holes occupied by them, as may be required in adjusting the guidestrips transversely with relation to each other, or it might be with relation to the cheekplates. The adjustments are retained by means of clamping screws 1331, 1331, applied to the said nipples and engaging by their inner ends with the said pins or studs.

As another feature of invention l employ in connection with the inclined arc-shaped portion 51 of the bobbin-chute one or more pairs of bobbin-trip-pins 128, 128, located just below the guide-strips 129, 130, in the path of the tip of a bobbin descending suoli portion 51 of the bobbin-chute, and arranged so that the two pins of a pair project inwardly toward each other from the two cheek-plates, but with a clear space or interval between their tips. Such space or interval is shown in Fig. '6. ylhe trip-pins serve as detents to check the advance of the bobbin-tip while the bobbin-head continues its progress; in other words, the trip-pins are employed for overturning the bobbin so that it lies substantially horizontal as it arrives at the foot of the arc-shaped portion 51 of the bobbinchute. The said tips of the two strip-pins of a pair are intended to be located sufiiciently close to each other to prevent a bobbin tip from passing between them, but are separated by an intervening space sufficient to permit a length of yarn trailing from the bobbin to slip through. rhis provision for permitting pendant yarn to go through avoids the clogging of the delivery portion of the bobbin-chute with loose yarns. lt obviates likelihood of a bobbin tip remaining hung up in said portion of the chute, as in consequence of two or more bobbins being connected together by loose yarn; it guards against a bobbin entering between the stripper-blades with its tip held too high and the bobbi i consequently in a longitudinally inclined position. Two pairs of tripiso pins are employed in the illustrated. machine. To provide 'for varving the setting'of the two trip-pins of a pair with relation to each other, so as to vary the extent of separation of'their proximate ends, the stems oi the said pins are screw-threaded and occupy screwthreaded holes in the chute-castings 119, 120. By tari inc' the trip-pins in the saidvholes they are shifted endwise to locate their proximate ends the required distance apart. rllhe pins are secured by means of lock-nuts 1:?81, 1281, against accidental loss of adjustnient. By providing trip-pin receiving holes 1282, i in the cheek-plates and chutecastin gs, el lierent distances trom the chuterails .159, 139, it is made possible to shift the trip-pins 'from one set of holes to another to suit liflerent lengths of bobbins operated upon,

nit 131i is a rest-pin at the lower end of the inclined arc-like portion oi the bobbin-chute, upon which the tip of a bobbin takes bearing as the bobbin arrives at said lower end. Said rest-pin serves to assure that the bobbin shall ssume a horizontally extended position, and t sustains the bobbin-tip until the bobbin is lran frein it by the action ot the traveling ripper-jaws.

A. segmental guard 13G orerlying the inclined arc-like portion 51 of the bobbin-chute, and parallel'ing such portion, prevents the head-ends of bobbins descending such portion from projecting too far outward 'from the bobbin-chute, and thereby provides against outward displacement of a bobbin. T .is guard. cooperates with the chute-rails 189, 139, in delivering` the bobbin between the opposing sets ot' stripper-blades 45, 45, with the bobbin-head resting upon the rests il?, 17, and with the portion or the bobbin that immediately adjoins its head presented properly to the acting ends ot the stripperblades. 'lhe said guard is carried by brackets 131, 131, which are held to the chute-casting 12() by means of bolts 1311, 1311. To enable the guard to be adjusted inwardly or outwardly as may be required in practice, the brackets are formed with elongated slots 1312, 1312.

The arc-shaped portion of the bobbinchute formed as a quadrant constituted in etlect by a development of the periphery of a con-e corresponding substantially with a bobbin, so that the portion of a bobbin which contacts with the chute-rails 139, 139, may roll rpon the arc-shaped portions of the said chute-rails without material departure from substantially rue radial position, while changing from vertically erect to horizontal position, subject ot course to the detaining effect et the bobbin trip-pins upon the tip of the bobbin.

Having reference now to o the stripperblades and the means and manner oi' actuating the saine respective guideways by cover-plates 4G, do.

1n the present instance each set of stripperblades comprises a thin blade arranged to act its concaved chisel-like inner end against a bobbin close to the shoulder of the bobbinhead resting upon the bobbin-rests 47, 1i?, and a second stripper-blade having a broader and serrated concaved working end.

F or the actuation of the stripper-blades, their outer ends are connected pivotally with upstanding arms of stripper-levers 168, 189

lligs. 1, 9., and 9, which are sleeved loosely upon rock-shafts 179, 179, at the opposite sides oi the machine. 1n the case oi' each roclrshaitt19, arm 166 sleeved upon such roclshait and made fast thereto by clampingv screws extends down from the shaft at the outer side ot a downwardly extending arm of the lever 169. A stud l0 extending through holes in the two arms has a head which maires contact with the The stem of the said stud at the inner side oi the downwardly extending arm of stripperlever 169 has mounted thereon an expanding vspiral spring 1-1 which is confined between the said arm of stripper-lever 169 and the.

washer and nut l2 upon the screw-threaded inner extremity of the stud. As willbe obvious, when the roclshait 179 is turned in a clockwise direction as incricated by the arrow in Fig. 9, movement will be imparted through the described connections to the stripperlever 169 in the direction to slide the connected stripper-blade inward, the spring 41 yielding compressively as soon as the working end of the said stripper-blade brings up iirmly against the bobbin, seas through such yielding to obviatc injury to the parts or to the bobbin. An arm 171 sleeved upon each roclrshat 17 9 and made 'tast thereto by clamping screws, as shown in Figs. 1 and 9, and extending upward `from the roclrshaiit at the inner side ot a lug 1681 projecting rearward from the stripper-lever 168, has combined therewith a stud d() extending through the said lug and the arm 171, with its head at the outer side of the lug, and with an eX- panding spiral spring 11 mounted upon the stem of the stud between the inner side oit the arm 171 and a nut and washer i2 upon the threaded inner end of the stud. As will be obvious, the aforesaid turning movement of the roclrshaft in clockwise direction as indicated bv the arrow in Fig. 9, will cause the arm 171 to act compressively against the spring 41 to actuate the stripper-lever 168 to outer side of the arm 166.,

, upward in the slot to descend under the influence ot gravity tomove the associated stripper-blade 45 inward, with capacity to yield as soon as the working end ot the said blade brings up solidlyv against a bobbin. When the rockshat is rocked reversely, the arms 166 and 171 will act positively upon the stripper-levers 169 and 168 to move the said levers to withdraw the stripper-blades outwardly.

' As will be understood, the two rockshafts 179, 179, located at the opposite sides of the bed 1, will be rocked simultaneously, but oppositely with reference to each other, in order that the opposing sets ot stripper-blades may be caused to move simultaneously toward each other, Jfor engagement with a bobbin at opposite sides ot the latter prior to the withdrawal of the bobbin lengthwise trom between the stripper-blades, and that following the strippiny operation they may be caused. to move simultaneously outwardly away from each other. The roe rsha'its 179, 179, are provided with arms 31, 31, engaging with cams 16, 16, on the shaft so that through the rotation oi the said shaft and cams the rocksha'l'ts are rocked as has been indicated.

A shutter 36 by means ot' which. bobhin descending the arc-shaped portion 51 et the bobbin-chute is prevented 'from longitudinal displacement, large-end first, as it lands upon the bobbin-rests 47, 47, and until it becomes grasped between the working ends of the opposing sets oi stripper-blades, is shown in its working relations in Figs. 1 and 2, and separately in Figs. 7 and 8. It is mounted pivotally at 361 upon a lined support, and is adapted to swing around the pivot in a vertical plane closely adjacent the bobbin-rests. r1`he shutter is shown in upraised position in Figs. 7 and 8 to afford opportunity for the gripper-j aws 29 and 30 of the cross-head 4 to engage with the bobbin-head at opposite sides transversely of the said head. ln the said position oi the shutter 36, it is properly located with reference to the bobbin occupying the feed-chute above and resting upon the bobbin in stripping position so that, as the latter bobbin is being withdrawn by the bobbin-pulling movement oit' the gripperjaws, the shutter prevents any movement of the upper hobbin in the same direction.

For the actuation of the shutter a pull-rod 362, Figs. 7 and 8, is employed intermediate an arm 363 of the adjacent rocksha'ft 179, and an arm of the shutter extending outward from the pivot 361 thereof. The pull-rod 369J is engaged with the said arm oi the shut er by means of an engaging piece 364 that is lined by means ot' a clamping screw 365 upon the upper portion of the said pull-rod at the required height. rlhis engaging piece 364 works in a slot 366 in the arm aforesaid o' the shutter. llihen arm 363 swings upward, the freedom o'lf the engaging piece 364 to move 366 leaves the shutter tree ward a position alongside the bobbin-rests. Hence, in case the shutter lands on top of a bobbin-head projecting under the shutter, no breakage will result. When the arm swings downward the engaging piece 364 moves downward within the slot 366 until it encounters the bottom of the slot 366 before movement is imparted to the shutter 36. This permits a dwell of the shutter in its lower position to aliord opportunity Jfor a bobbin to descend completely into contact with the bobbin-rests 47. During the remainder of the swinging movement oi the arm 363, it transmits lifting movement to the shutter 36.

On account ot the wear due to contact of the bobbin-head rings with the bobbin-rests 47, 47, and to movement of the said rings across the said bobbin-re'sts as the bobbins are withdrawn by the action of the gripper-j aws, l employ removably applied rests constituted by blocks shaped as shown in Figs. 9 and 10, secured in place upon the supports therefor by means of screws 471. I form these rest pieces 47, 47, oit material capable of eectively withstanding the wear.

To enable the extent of the movement of the respective stripper-blades inward to be regulated, so as to avoid likelihood of injury to the working ends of the stripper-blades through too severe an impact against a bob-v bin about to be stripped, I provide an adjustment screw 43, Fig. 1, in connection with each arm 166 and each lug 1681. rlhe screw 43 that is applied to an arm 166 extends inwardly therefrom toward the adjacent downwardly extending arm of the associated stripper-lever 169, so 'as through engagement between the said downwardly extending arm and the inner end of the adjustment screw, the Iangular position which the stripperlever 169 is caused to assume upon the rockshaft 179 through the action of the corresponding spring 41 is determined. ln like manner, the adjustment screw 43 that is applied to the lug 1681 of the stripper-lever 168 extends inward toward the adjacent upstanding arm 171 on rockshait 179 so that, through engagement between the inner end ot the said adjustment screw and the said upstanding arm, the angular position that the stripperlever 168 is caused to assume upon the rockshaft under the action of the corresponding spring 41 is determined.

The broad-ended stripper-blades 45, 45 are arranged so that as they move inward toward each other and a bobbin interposed between them their comparatively broad ends close against the exterior of any bunch or" weft or filling, or other windings, remaining upon the bobbin. ln the stripping action which ensues as the bobbin is drawn endwise between the opposing sets ot stripper-blades by the traveling gripper-j aws, the said broadended jaws keep hold ot said bunch or other winding and wipe it toward the tip ot the bobbin. The vchisel-ended stripper-blades penetrate between the shoulder of the bobbin-head and any bunch or other windings, and cooperate with the broad-ended blades in holding back the waste as the bobbin is withdrawn, in addition to stripping from the bobbin any tui is or coils of illing that may not have accompanied the main residual collection the latter is removed by the broaden(1 blades inasinucn as all tour or the stripper .c

yield e' at such time open) are moved toward the pos'tion occupied byA the head or' a bobbin supplied 'through the arc-shaaed delivery pcfrtianv or the bobbinehute, They are caused to close upon and grasp the bobbin-head. They then moved ay ,y from sucn positiom pulling such boba enuwise between the stripper-blades.

icy then are opened to release 'the stripped bobbin, and are latched in open condition, to

remain )en until they have again reached the position for taking hold oi a bobbin pre- 'ed to be stripped.

- ers that are mounted by means of pivotal rapen the traveling cross-head e, to swing e horizontal plane so as to cause their sj ne' enf, f# approach and recede from syerseiy. he said grasping 'noted properly for engagehead of a bobbin.

ie soring engaged ted cam, and l against angular oily against the the grippenjaws Z9,r

i he gripper-jaws 29, 80, are constituted by c rews 2i', Q7, (see more particularly F ln this in-V are vertically, to receive movement aroundsaid postby means of a pin 59 (shown separately in F ig. la) occupying a diametrieal hole in the post, and having a projecting end thereof entered into one of the notches of the castellated top of the drum. The bent inner end of the pin prevents such end from passing in one direction through the hole in the post,` While a nut 591, lifig. 14, applied externally oi the castellations of the drum to a screw-threaded portion of the pin prevents the pin from shitting' endwise in the opposite direction. The spring acts with a tendency' to swing the slotted cam in the direc-V tion to close the gripping 'jaws toward each other. The tension of the spring may be regulated by removinff the pin 59, turning the spring drum in the proper direction to ure the desired tension, and replacing the pin. F or the purpose oi actuatine' the slotted cam to separate the gripper-jaws as the outgoing movement of the cross-head is coinpleted, (that is to say, the movement away from the bobbinchute and stripper-blades,) a stationary stop 91, constituted by a roll, is positioned where it will ybe encountered by an outstanding arm of the slottedcam toward the end of the said outgoing movement. Thereby the slotted cam is swung around the post 232, and the cam-slots occasion the required opening of the grip'perjaws. The j awe are retained in open condition through the engagement of a shoulder 233 on the slotted cam by a latch .24, pivoted at 25 upon the cross-head and actuated by means ot a spring 28 to effect such engagement. The grippenjaws, remaining open during the movement orn the cross-head toward the bobbin-chute and Strip'perblades, and until -the engaging portions of the jaws have been disposed at opposite sides of a bobbin-head restingupon the bobbin-rests 47, e7, are caused to close upon such bobbin-head through turning movement ot the slotted cam due to the action of spring 32, in consequence of disengagement of latch Eil-through being carried against a stationary stop 8l. The said stop is constituted by av screw, so that its acting portion may be shifted endwise to render it possible -to cause the closing of the jaws to occur at the rightv point in the ingoing movement oit the cross-head for bringing about proper engagement of the jaws with the bobbin-head- During the outgoing movement of the cross-head, the jaws are caused by the tension of spring 32 to remain closed upon the bobbin-head, so that they pull the bobbin through between the stripper-blades and jaws release the stripped bobbin, permitthigl it to drop. The latch 2li again latches the 1 i Le 0 o2.,

am in position to hold the gripper.-

jaws open as required 'for the ensuing inbound travel o1 the cross-head.

A feature of the invention consists in provisions for rendering the gripper-jaws individually adjustable transversely. In virtue of this adjustability it is rendered possible to ensure that in closing upon the head of a bobbin lying between the opposing sets of stripper-blades the two gripper-jaws shall bear with equal pressure and force against the opposite sides oit the bobbin-head, without tendency to bear the bobbin over bodily toward one side or the other. In the present instance 1 secure the said adjustability through employing as cam-followers 26, 26, pins having, as shown in Figs. 11, 12, and 15, cylindrical base-portions which occupy cylindrical holes in the gripper-j aw m-embers, and further having cylindrical upper portions which are located upon said base-portions eccentrically with relation to the axes of the base-portions. These eccentrically-disposed upper-portions enter the cam-slots 231, 231. Inasmuch as the eccentrically-related upper-portions of the cani-followers work within and have to iollow the cam-slots 231, 231, in the slotted cam 28, it will be seen that angular (rotative) adjustment o1' the cam-'followers about their own axes will bring about modification of the positions taken by the acting ends of the gripper-jaws as the said ends are closed together by the action of the slotted cam. For the purpose of enabling such angular adjustment of the cam-'followers about their individual axes to be eilected, a screw-driver slot or niclr is made in the exposed end of each cam-tollower. For the purpose of enabling the respective cam-,followers to be locked in the positions given them in their angular adjustments, a horizontal hole is formed in each gripper-jaw member and in such hole is placed a pin 261, Figs. 12 and 16, having in an intermediate portion of its length a concavity 262, Fig. 16, into which the base-portion of the corresponding cam-follower ts. The projecting end of the said pin 261 is threaded and has applied thereto a locknut 268. YVhen this locknut is loosened, the locking pin 261 is suiliciently loose in its engagement, with the base-portion o1 the cam-follower, and this permits any desired angular (rotary) adjust-- ment ot the cam-follower. Vhen the loclrnut is tightened up against the outer side of the jaw-member the pin 261 is drawn endwise outwardly, so that one side of the concavity in such pin is forced firmly into engagement with the base-portion oii the cam-follower. 'l1 o give an effective hold, the said base-portion is roughened, as by knurling, as shown.

To provide 'for varying the point in the outgoing stroke of the cross-head at which the gripper-jaws shall be opened to release the stripped bobbin held thereby and permit such bobbin to drop, stop 91 is made adjustable longitudinally of the machine. To this end,

in the present instance the stand 9 in which stop 91 is mounted by means of a pivotal screw 92, Fig. 11, has formed in its toot 93 a slot 94 'for the bolt 95 by which such stand is lined in place.

For the purpose of removing' from the barrel oi'. a bobbin which is being cleaned any coils or turns ot yarn which may remain upon, the said barrel following the action of the two sets of stripper-blades, l employ one or a pair of clearers or wipers 123, 123, shown best in F ig. 2. The said clearers or wipers are actuated with a timing independent of that of the stripper-blades, to open and close with relation to the path along which a bobbin is transported by the grippers in being drawn from between the stripper-blades. In this instance, I employ a pair of the said clearcrs or wipers, constituted of a pair of arms equipped with pieces ol' material suit-I able or clearer or Wiper action, such as felt, leather, or the like. The arms, respectively, are mounted upon vertical pivots 127, 127, which are located at opposite sides of the path in which the gripper-jaws are reciprocated. The arms are capable of swinging transversely toward and from each other around these pivots. The bobbin-engaging extremities of the clearers or wipers are located just baclr of the stripper-blades. For the purpose oit spreading them apart so as to permit access of the grippers to the head oi a bobbin occupying a position between the two sets of stripper-blades, 1 utilize the movement of the gripper-carriage toward the stripper-blades. For causing them to close against opposite sides of the bobbin-barrel after the grippers have been withdrawn suiliciently to carry the bobbin-head beyond their acting extremities, the arms are urged toward each other by means of spiral springs 164i, 164, which tend to close the strippers or wipers together. Such springs in the present instance are conned between the arms and posts 126, 126, that are iiredly connected with the supporting frame at the outer sides of the arms, so that the springs act enpansively against the arms. rEhe normal inward positions oi the arms, and the closeness of the approach of their extremities are determined by means of contact-screws 128, 128, carried by outwardly-extending projections ot the arms and arranged to malte contact by their inner ends with outer surface-s of upstanding fixed portions of bed 1. 'lhe working positions, and the relations, of the parts are such that in the stroke of the gripper-j aw carriage toward the stripper-blades from the position in which it is represented in Figs. 1 and 2, the leading portions o1' the gripper-jaws act against curved inner surfaces of the arms 123, 123, to press outwardly the bobbin-engaging extremities of said arms. rllhereby the said extremities are spaced apart suiiciently to permit the bobbin-engaging ends tween them in the return movement of ther carriage toward the position shown in Fig.` 1.

By the concluding portion of the said stroke toward the stripper-blades the wide-open jaws are projected beyond the bobbin-engaging extremities of the clearer or wiper-arms 123, 128, suliiciently to embrace and close upon the head of a bobbin that has been dropped between the two sets of stripperblades. In the return' movement or" the carriage, as soon as the bobbin-head has been carried past the acting extremities of the clearers or wipers, the said acting extremities are caused by the springs 1G41-, 164, to taire bearino' against the bobbin at opposite sides thereoi, so as to act thereupon for wiping and clearing purposes. Following the complete withdrawal oi the bobbin-tip from between the clearers or wipers, the latter swing toward leach other until arrested in the predetermined closeness of approach by the stopscrews 128, 128. Through adjustment et the said stop-screws, the closeness ot approach of the clearers or wipers to cach other may be regulated.

W hat is claimed as the invention is 1. In a bobbin-stripper machine, the combination with stipper-devices, and a reciprocating ldevice' for movingl a bobbin relative to said devices to effect stripping, of bebbin-guiding chute by which a bobbinnto be stripped is delivered to the stripper-devices, said chute controlling the bobbin by the bobbin-head, bobbin-guide strips in connection with the chute between which th barrel is guided, said strips transversely adjustable, supporting pins or studs-combined vwith said strips, and means engaging with such pins or studs to holdv the strips in adjusted position.

2. In a bobbin-stripper machine, the coinbination with stripper-devices, andy an inclined bobbin-chute in which a-bobbin hangs suspended by its head as it progresses toward the stripper-devices, ci a pair or" bobbin trippins in connection with said chute having the proximate ends of the pins separated by a space for the passage of trailing yarn.

8. In a bobbin-stripper machine, the combination with stripper-devices, and an inclined bobbin-chute in which a bobbin .hangs suspended by its head as it progresses toward the stripper-devices, oitI a pair oit bobbin trippins in connection with said chute having the proximate ends thereoi` separated bya space for the passage of trailing yarn, and means for adjustment of' the said bobbin trippins to vary the dimensions of such space.

d. In a bobbin-stripper machine, the combination with stripper-devices and an inclined bobbin-chute in which a bobbin hangs suspended by its head as it progresses toward the stripper-devices, of a pair of bobbin trip-pins in connection with said chute having the proximate ends thereof separated by a space for the passage of trailing yarn, said'trip-pins having screw-threaded stems providing for adjust-ment of the trip-pins in the direction of their length.

5. In a bobbin-stripper machine, the combination with stripper-devices and an inclined bobbin-chute in which a bobbin hangs suspended by its head from opposite `guidewaysas it progresses toward the stripperdevices, of a bobbin-trip which is encountered by the tip of the descending bobbin, and means providing for shift of the said trip positions at dii'ljerent distances from the said guideways to suit dierent lengths of bobbins.

6. In a bobbin-stripper machine, the combination with stripper-devices and an inclined bobbin-chute in which a. bobbin hangs suspended by its head from opposite guideways as it progresses toward the stripper-devices, oi a bobbin-trip which is encountered by the tip of the descending bobbin, and supports having` at diierent distances from said guideways'holes to receive said trip, the plurality'ot holes providing for shift of the trip relative to the guideways to suit different lengths of bobbins.

7. In 4a bobbin-stripper machine, the combination with a reciprocating cross-head, bobbin-gripping jaws upon said cross-head, and means for'feeding bobbins to said jaws, of stripping blades adapted to engage a residual mass of fillingv upon said bobbin, and other stripping blades adapted to engage said bobbin between the filling and the-shoulder of the head of the bobbin.

8. In a bobbin-stripper machine, the combinat-ionwith a reciprocating cross-head, bobbin-gripping aws upon said cross-head, stripping members, and means for feeding bobbins i to the latter, of a shutter pivotally` mounted to permit it to be swung into position opposite the said stripping members, and actuating connectionsV forv said shutter having provisions for lost-motion and play to permit the vshutter to be arrested by a misplaced bobbin without injurious results.

9. In a bobbin-stripper machine, the combination with a reciA rocating cross-head, bobbin-gripping aws upon said cross-head, stripping members, and means for feeding bobbins to the latter, of a shutter pivotally mounted to permit it to be swung into position in line with the stripper-members, said shutterhaving an arm with a slot therein, a rockshaft having an arm, and a pull-rod connected with the latter arm and having an engaging member working in said slot.

10. In a bobbin-stripper machine, the combination with a stripper-blade, a lever with lwhich said blade is connected, a swinging actuating` arm, and means for yieldingly transmitting movement from said actuating arm to said lever comprising a st-ud or pin engaged with one thereof and passing` through a hole in the other, and a spring confined between one of said parts and a stop upon the stud or pin, whereby when the arm is moved it acts through the spring to transmit power to the lever, of means for adjusting the stroke of the stripper-blade comprising an adjustment stud connected with one of said parts and engaging with the other to effect angular shift of the lever with respect to the arm.

11. In a bobbin-stripper machine, the combination with a reciprocating cross-head, stripping members, and means for feeding bobbins to the stripping members, of gripping-jaws pivotally mounted upon said crosshead, a member also pivotally mounted upon the cross-head, having cam-slots, and camfollowers upon the said gripping-jaws working in said cam-slots, to force said gripping jaws open or shut assaid member is swung in one direction or the other about its pivot.

12. In a bobbin-stripper machine, the coinbination with a reciprocating cross-head, bobbin gripping-jaws carried thereby, a gripperactuating cam carried by said cross-head, a latch for locking said cam with the grippers open, and a spring for actuating said cam to close the grippers upon a bobbin when the cam is freed through disengagement of the latch, of a drum upon which the coil of said spring is mounted and with which one end of the spring is engaged, and means for effecting angular adjustment of the said drum to create the required degree of tension in the spring.

13. In a bobbin-stripper machine, the combination with stripping members, means for feeding bobbins to the stripping members, and a reciprocating cross-head, of gripping-jaws mounted upon said cross-head, a gripper-actuating cam carried by said cross-head, and provisions for rendering the gripper-j aws individually adjustable transversely to modify the positions taken by the acting ends of the gripper-jaws when closed together by the action of the said cam.

14. In a bobbin-stripper machine, the combination with stripping members, means for feeding bobbins to the stripping members, and a reciprocating cross-head, of grippingjaws mounted upon said cross-head, a member pivotally mounted upon said cross-head having cam-slots, cam-followers carried by the gripping-jaws working in said cam-slots to actuate the said jaws upon. rotation of said member, a spring tending to rotate said member in a direction to close the jaws, and means to rotate said member reversely to open the jaws, the said cam-followers having eccentric mountings upon the said gripping-jaws to enable them through angular adjustment to modify the positions taken by the acting ends of the gripping-jaws as they are closed together.

15. In a bobbin-stripper machine, the combination with a reciprocating cross-head,

bobbin gripping-jaws upon said cross-head,

and means for feeding bobbins to said jaws, broad-'faced stripper-blades adapted to engage exteriorly a residual mass of iilling upon said bobbin, and chisel-ended stripping lades adapted to engage the bobbin between the filling and the shoulder of the head of the bobbin. n

16. In a bobbin-stripper machine, the combination with stripper-devices, and a bobbinway in which a bobbin hangs suspended by its head between opposite cheeks as it progresses toward the stripper-devices, of a pair of bobbin-trip-pins in connection with said bobbin-way, with the proximate ends of the said ins se )arated b a s ace for the )assaoe of trailing yarn.

17. In a bobbin-stripper machine, the combination with a reciprocating head having means to actuate a bobbin endwise as the head moves, and means for presenting a bobbin in position to be actuated thereby, of stripping blades adapted to engage eXteriorly residual mass of filling upon the said bobbin, and other stripping blades adapted to engage said bobbins between the lling and the shoulder of the head of the bobbin.

18. In a bobbin-stripper machine comprising stripping means, a reciprocating crosshead, and bobbin-head-gripping jaws mounted upon said cross-head, the combination with such elements of a member mounted upon said cross-head and movable relative thereto for opening and closing the jaws, said member and said jaws respectively having cam-slots and followers occupying said camslots, means for moving said member in one direction to force the jaws open, a latch which engages with such member to lock it with the jaws open, means for causing disengagement of the latch to unlock the said member, and a. spring by which when the unlocking takes place such member is actuated to close the jaws upon a bobbin which is to be moved past the stripping means.

19. In a bobbin-stripper machine, the combination with stripper-blades, and a reciprocating bobbin-pulling device, of a wiper or clearer by which turns of yarn remaining on a bobbin-barrel after being pulled past the said stripper-blades are wiped oit, spring-actuated to carry it toward the path of the bobbin, and displaced by the bobbin-pulling device, in the stroke of the latter to engage with the bobbin, from the said path so as to provide clearance for the pulling-device and bobbin-head.

20. In a bobbin-stripper machine, the combination with stripper-blades, and a reciprocating bobbin-pulling device, of Wipers or clearers by which turns of yarn remaining on a bobbin-barrel after being pulled past the said stripper-blades are wiped olf, spring-actuated to impel their wiping portions toward the pth of a bobbin as the latter is drawn past the stripper-blades, widespread apart by the bQbbin-pullng device as the latter makes its stroke toward the stripper-blades.

' EDGAR A. TERRELL. 

